namespace 项目01
{
    class Phone
    {
        public string 拥有者;
        public string 型号;
        public string 号码;

        public string 获取(){
            return $"拥有者:{拥有者}\n 型号:{型号}\n 号码:{号码}\n";
        } 

        public Phone(string 拥有者,string 型号,string 号码){
            this.拥有者 = 拥有者;
            this.型号 = 型号;
            this.号码 = 号码;
        }

        public Phone(){
            this.拥有者 = "";
            this.型号 = "";
            this.号码 = "";
        }
    }
}